Shop aquarium water testing kits

Sponsored
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$35.60
API FRESHWATER MASTER TEST KIT 800-Test Freshwater Aquarium Water Master Test Kit, White, Single, Multi-Colored
Amazon.com
38K+
Free shipping
$35.60
API FRESHWATER MASTER TEST KIT 800-Test Freshwater Aquarium Water Master Test Kit, White, Single, Multi-Colored
Amazon.com
38K+
$12.98
Aquarium Test Strips For Freshwater Fish: 7 in 1 Fish Tank Water Testing Kit For Aquarium Pond - Accurate Testing Nitrate Nitrite Hardness Free
Amazon.com
2K+
$12.98
Aquarium Test Strips For Freshwater Fish: 7 in 1 Fish Tank Water Testing Kit For Aquarium Pond - Accurate Testing Nitrate Nitrite Hardness Free
Amazon.com
2K+
$129.50
APERA INSTRUMENTS AI316 Premium Series PC60 5-In-1 Waterproof Ph/EC (Conductivity) /TDS (Ppm) /Salinity (Ppt) /Temp. Multi-Parameter Pocket Tester Kit
Amazon.com
1K+
Free shipping
$129.50
APERA INSTRUMENTS AI316 Premium Series PC60 5-In-1 Waterproof Ph/EC (Conductivity) /TDS (Ppm) /Salinity (Ppt) /Temp. Multi-Parameter Pocket Tester Kit
Amazon.com
1K+
$24.98
API 5-IN-1 TEST STRIPS Freshwater And Saltwater Aquarium Test Strips 100-Count Box
Amazon.com
3K+
$24.98
API 5-IN-1 TEST STRIPS Freshwater And Saltwater Aquarium Test Strips 100-Count Box
Amazon.com
3K+
$14.99
$18.99
7 in 1 - Aquarium Test Strips | 100 Fast & Accurate Strips | Fish Tank Aquariums Water Test Kit & Ebook | Aquarium Thermometer | Fish Tank Water
Amazon.com
4K+
21% off
$14.99
$18.99
7 in 1 - Aquarium Test Strips | 100 Fast & Accurate Strips | Fish Tank Aquariums Water Test Kit & Ebook | Aquarium Thermometer | Fish Tank Water
Amazon.com
4K+
$21.99
$29.59
11 in 1 - Aquarium Test Strips | 950 Tests - 150 Strips | Fish Tank Aquariums Water Test Kit & Ebook | Aquarium Thermometer | Fish Tank Water Testing
Amazon.com
4K+
25% off
$21.99
$29.59
11 in 1 - Aquarium Test Strips | 950 Tests - 150 Strips | Fish Tank Aquariums Water Test Kit & Ebook | Aquarium Thermometer | Fish Tank Water Testing
Amazon.com
4K+
$35.98
$54.99
API Freshwater Master Test Kit
Petco.com
38K+
34% off
$35.98
$54.99
API Freshwater Master Test Kit
Petco.com
38K+
$38.49
Api Freshwater Master Test Kit, Aquarium Water Test Kit, 850 Tests
Walmart
44
Free shipping
$38.49
Api Freshwater Master Test Kit, Aquarium Water Test Kit, 850 Tests
Walmart
44
$69.34
$125.00
Wifi Tuya Smart Water Quality Tester PH ORP TDS EC SALT S.G TEMP CF Monitor Controller Aquarium Water Quality Tester Dat
Banggood
Free shipping
44% off
$69.34
$125.00
Wifi Tuya Smart Water Quality Tester PH ORP TDS EC SALT S.G TEMP CF Monitor Controller Aquarium Water Quality Tester Dat
Banggood
Free shipping
$19.99
2 PACK 6-In-1 Aquarium Water Test Strips 100 Count Freshwater/Saltwater Test Kit
Etsy
12K+
Free shipping
$19.99
2 PACK 6-In-1 Aquarium Water Test Strips 100 Count Freshwater/Saltwater Test Kit
Etsy
12K+
$39.99
Imagitarium Aquarium Master Test Kit
Petco.com
$39.99
Imagitarium Aquarium Master Test Kit
Petco.com
$35.99
7 in 1 Digital PH/TDS/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter LCD Pen
Walmart
Free shipping
$35.99
7 in 1 Digital PH/TDS/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter LCD Pen
Walmart
Free shipping
$17.99
4-In-1 Digital Water Tester For Accurate Drinking Water And Aquarium Measurements 01
Evalm
$17.99
4-In-1 Digital Water Tester For Accurate Drinking Water And Aquarium Measurements 01
Evalm
$17.99
4-In-1 Digital Water Tester For Accurate Drinking Water And Aquarium Measurements 02
Evalm
$17.99
4-In-1 Digital Water Tester For Accurate Drinking Water And Aquarium Measurements 02
Evalm
$17.23
6-In-1 Aquarium Water Test Strip Ph, GH, KH, Chlorine, Nitrites (NO2), Nitrate (No3)
Etsy
2
$17.23
6-In-1 Aquarium Water Test Strip Ph, GH, KH, Chlorine, Nitrites (NO2), Nitrate (No3)
Etsy
2
$18.69
5-In-1 Water Quality Tester For PH, TDS, EC, Temperature - Ideal For Aquariums, Aquaculture, And Drinking Water
Evalm
$18.69
5-In-1 Water Quality Tester For PH, TDS, EC, Temperature - Ideal For Aquariums, Aquaculture, And Drinking Water
Evalm
$12.98
$24.99
API 5-IN-1 TEST STRIPS Freshwater And Saltwater Aquarium Test Strips 25-Count Box, Standard
Petco.com
13K+
48% off
$12.98
$24.99
API 5-IN-1 TEST STRIPS Freshwater And Saltwater Aquarium Test Strips 25-Count Box, Standard
Petco.com
13K+
$11.99
API High Range Ph Test Kit - Marine & Alkaline
AquaticMotiv
$11.99
API High Range Ph Test Kit - Marine & Alkaline
AquaticMotiv
$241.65
Water Quality Tester Monitor Controller Online Meter Ph Orp Aquarium
eBay
Free shipping
$241.65
Water Quality Tester Monitor Controller Online Meter Ph Orp Aquarium
eBay
Free shipping
$28.78
Digital PH TEMP Tester Meter Pen For Aquarium Pool Wine Water Laboratory Food
motorgenic.com
Free shipping
$28.78
Digital PH TEMP Tester Meter Pen For Aquarium Pool Wine Water Laboratory Food
motorgenic.com
Free shipping
$67.49
$134.98
JBL Pro Aqua Test Lab Proscape (Complete Aquarium Test Kit For Planted Aquariums)
www.growthsurfer.com A
Free shipping
50% off
$67.49
$134.98
JBL Pro Aqua Test Lab Proscape (Complete Aquarium Test Kit For Planted Aquariums)
www.growthsurfer.com A
Free shipping
$45.97
$91.94
5 in 1 Digital Water Quality Tester For Aquarium And Drinking Water - No Backlight | Uplift Essentials
Inspire Uplift
Free shipping
50% off
$45.97
$91.94
5 in 1 Digital Water Quality Tester For Aquarium And Drinking Water - No Backlight | Uplift Essentials
Inspire Uplift
Free shipping
$18.40
HM Digital TDS-4TM, Aquarium TDS Meter With Digital Thermometer
Selectum
164
$18.40
HM Digital TDS-4TM, Aquarium TDS Meter With Digital Thermometer
Selectum
164
$40.99
$55.69
API Freshwater Master Test Kit
jmpropiedadeaus
Free shipping
26% off
$40.99
$55.69
API Freshwater Master Test Kit
jmpropiedadeaus
Free shipping
$44.79
$58.23
API Freshwater Master Test Kit
Cheekyhost USA
23% off
$44.79
$58.23
API Freshwater Master Test Kit
Cheekyhost USA
$45.97
$91.94
5 in 1 Digital Water Quality Tester For Aquarium And Drinking Water - With Backlight | Uplift Essentials
Inspire Uplift
Free shipping
50% off
$45.97
$91.94
5 in 1 Digital Water Quality Tester For Aquarium And Drinking Water - With Backlight | Uplift Essentials
Inspire Uplift
Free shipping
$107.99
Aquarium Water Quality Detector Tds&Ph Monitor Fish Tank Ph Tester
eBay
$107.99
Aquarium Water Quality Detector Tds&Ph Monitor Fish Tank Ph Tester
eBay
$39.90
Multifunction Online Water Quality Meter For Aquarium With Tuya APP Meter
made-in-china.com
$39.90
Multifunction Online Water Quality Meter For Aquarium With Tuya APP Meter
made-in-china.com
$128.74
Aquarium Water Quality Detector Tds&Ph Monitor Fish Tank Ph Tester
eBay
$128.74
Aquarium Water Quality Detector Tds&Ph Monitor Fish Tank Ph Tester
eBay
$47.48
$94.95
Aquacheck 7 in 1 Aquarium Water Test Strips 100 Count Kit - 7In1 | Inspire Essentials
Inspire Uplift
Free shipping
49% off
$47.48
$94.95
Aquacheck 7 in 1 Aquarium Water Test Strips 100 Count Kit - 7In1 | Inspire Essentials
Inspire Uplift
Free shipping
$79.98
$119.97
Neptune Systems Trident - Marine Aquarium Water Analyzer
hardclikk.com
33% off
$79.98
$119.97
Neptune Systems Trident - Marine Aquarium Water Analyzer
hardclikk.com
$9.99
API Ph Test & Adjuster Kit - 250 Tests
AquaticMotiv
$9.99
API Ph Test & Adjuster Kit - 250 Tests
AquaticMotiv
$53.25
Api Freshwater Master Test Kit 800Test Freshwater Aquarium Water Master Test Kit White Single Multicolored, Multi-Color
alumigogo
38K+
$53.25
Api Freshwater Master Test Kit 800Test Freshwater Aquarium Water Master Test Kit White Single Multicolored, Multi-Color
alumigogo
38K+
$21.05
Api Ph Test Adjuster Kit 250Test Freshwater Aquarium Water Ph Test And Adjuster Kit 29A, No Color
alumigogo
13
$21.05
Api Ph Test Adjuster Kit 250Test Freshwater Aquarium Water Ph Test And Adjuster Kit 29A, No Color
alumigogo
13
$55.61
Api 800Test Freshwater Aquarium Water Master Test Kit And Nitrifying Bacteria For Freshwater Saltwater Aquariums
alumigogo
$55.61
Api 800Test Freshwater Aquarium Water Master Test Kit And Nitrifying Bacteria For Freshwater Saltwater Aquariums
alumigogo
$192.00
Hach Chlorine (Free & Total) & Ph Test Kit Model CN-67 1411100
Core & Main
$192.00
Hach Chlorine (Free & Total) & Ph Test Kit Model CN-67 1411100
Core & Main

Shop aquarium water testing kits

Sponsored
About our ads
$35.60
API FRESHWATER MASTER TEST KIT 800-Test Freshwater Aquarium Water Master Test Kit, White, Single, Multi-Colored
Amazon.com
38K+
Free shipping
$35.60
API FRESHWATER MASTER TEST KIT 800-Test Freshwater Aquarium Water Master Test Kit, White, Single, Multi-Colored
Amazon.com
38K+
$12.98
Aquarium Test Strips For Freshwater Fish: 7 in 1 Fish Tank Water Testing Kit For Aquarium Pond - Accurate Testing Nitrate Nitrite Hardness Free
Amazon.com
2K+
$12.98
Aquarium Test Strips For Freshwater Fish: 7 in 1 Fish Tank Water Testing Kit For Aquarium Pond - Accurate Testing Nitrate Nitrite Hardness Free
Amazon.com
2K+
$129.50
APERA INSTRUMENTS AI316 Premium Series PC60 5-In-1 Waterproof Ph/EC (Conductivity) /TDS (Ppm) /Salinity (Ppt) /Temp. Multi-Parameter Pocket Tester Kit
Amazon.com
1K+
Free shipping
$129.50
APERA INSTRUMENTS AI316 Premium Series PC60 5-In-1 Waterproof Ph/EC (Conductivity) /TDS (Ppm) /Salinity (Ppt) /Temp. Multi-Parameter Pocket Tester Kit
Amazon.com
1K+
$24.98
API 5-IN-1 TEST STRIPS Freshwater And Saltwater Aquarium Test Strips 100-Count Box
Amazon.com
3K+
$24.98
API 5-IN-1 TEST STRIPS Freshwater And Saltwater Aquarium Test Strips 100-Count Box
Amazon.com
3K+
$14.99
$18.99
7 in 1 - Aquarium Test Strips | 100 Fast & Accurate Strips | Fish Tank Aquariums Water Test Kit & Ebook | Aquarium Thermometer | Fish Tank Water
Amazon.com
4K+
21% off
$14.99
$18.99
7 in 1 - Aquarium Test Strips | 100 Fast & Accurate Strips | Fish Tank Aquariums Water Test Kit & Ebook | Aquarium Thermometer | Fish Tank Water
Amazon.com
4K+
$21.99
$29.59
11 in 1 - Aquarium Test Strips | 950 Tests - 150 Strips | Fish Tank Aquariums Water Test Kit & Ebook | Aquarium Thermometer | Fish Tank Water Testing
Amazon.com
4K+
25% off
$21.99
$29.59
11 in 1 - Aquarium Test Strips | 950 Tests - 150 Strips | Fish Tank Aquariums Water Test Kit & Ebook | Aquarium Thermometer | Fish Tank Water Testing
Amazon.com
4K+
$35.98
$54.99
API Freshwater Master Test Kit
Petco.com
38K+
34% off
$35.98
$54.99
API Freshwater Master Test Kit
Petco.com
38K+
$38.49
Api Freshwater Master Test Kit, Aquarium Water Test Kit, 850 Tests
Walmart
44
Free shipping
$38.49
Api Freshwater Master Test Kit, Aquarium Water Test Kit, 850 Tests
Walmart
44
$69.34
$125.00
Wifi Tuya Smart Water Quality Tester PH ORP TDS EC SALT S.G TEMP CF Monitor Controller Aquarium Water Quality Tester Dat
Banggood
Free shipping
44% off
$69.34
$125.00
Wifi Tuya Smart Water Quality Tester PH ORP TDS EC SALT S.G TEMP CF Monitor Controller Aquarium Water Quality Tester Dat
Banggood
Free shipping
$19.99
2 PACK 6-In-1 Aquarium Water Test Strips 100 Count Freshwater/Saltwater Test Kit
Etsy
12K+
Free shipping
$19.99
2 PACK 6-In-1 Aquarium Water Test Strips 100 Count Freshwater/Saltwater Test Kit
Etsy
12K+
$39.99
Imagitarium Aquarium Master Test Kit
Petco.com
$39.99
Imagitarium Aquarium Master Test Kit
Petco.com
$35.99
7 in 1 Digital PH/TDS/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter LCD Pen
Walmart
Free shipping
$35.99
7 in 1 Digital PH/TDS/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter LCD Pen
Walmart
Free shipping
$17.99
4-In-1 Digital Water Tester For Accurate Drinking Water And Aquarium Measurements 01
Evalm
$17.99
4-In-1 Digital Water Tester For Accurate Drinking Water And Aquarium Measurements 01
Evalm
$17.99
4-In-1 Digital Water Tester For Accurate Drinking Water And Aquarium Measurements 02
Evalm
$17.99
4-In-1 Digital Water Tester For Accurate Drinking Water And Aquarium Measurements 02
Evalm
$17.23
6-In-1 Aquarium Water Test Strip Ph, GH, KH, Chlorine, Nitrites (NO2), Nitrate (No3)
Etsy
2
$17.23
6-In-1 Aquarium Water Test Strip Ph, GH, KH, Chlorine, Nitrites (NO2), Nitrate (No3)
Etsy
2
$18.69
5-In-1 Water Quality Tester For PH, TDS, EC, Temperature - Ideal For Aquariums, Aquaculture, And Drinking Water
Evalm
$18.69
5-In-1 Water Quality Tester For PH, TDS, EC, Temperature - Ideal For Aquariums, Aquaculture, And Drinking Water
Evalm
$12.98
$24.99
API 5-IN-1 TEST STRIPS Freshwater And Saltwater Aquarium Test Strips 25-Count Box, Standard
Petco.com
13K+
48% off
$12.98
$24.99
API 5-IN-1 TEST STRIPS Freshwater And Saltwater Aquarium Test Strips 25-Count Box, Standard
Petco.com
13K+
$11.99
API High Range Ph Test Kit - Marine & Alkaline
AquaticMotiv
$11.99
API High Range Ph Test Kit - Marine & Alkaline
AquaticMotiv